Source code pulled from OpenBSD for OpenNTPD. The place to contribute to this code is via the OpenBSD CVS tree.
 
 
 
 
 
 

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# $OpenBSD: rc,v 1.492 2016/12/27 09:17:52 jca Exp $
# System startup script run by init on autoboot or after single-user.
# Output and error are redirected to console by init, and the console is the
# controlling terminal.
# Turn off Strict Bourne shell.
set +o sh
# Subroutines (have to come first).
# Strip in- and whole-line comments from a file.
# Strip leading and trailing whitespace if IFS is set.
# Usage: stripcom /path/to/file
stripcom() {
local _file=$1 _line
[[ -s $_file ]] || return
while read _line ; do
_line=${_line%%#*}
[[ -n $_line ]] && print -r -- "$_line"
done <$_file
}
# Update resource limits based on login.conf settings.
# Usage: update_limit -flag capability
update_limit() {
local _flag=$1 # ulimit flag
local _cap=$2 _val # login.conf capability and its value
local _suffix
for _suffix in {,-max,-cur}; do
_val=$(getcap -f /etc/login.conf -s ${_cap}${_suffix} daemon 2>/dev/null)
[[ -n $_val ]] || continue
[[ $_val == infinity ]] && _val=unlimited
case $_suffix in
-cur) ulimit -S $_flag $_val
;;
-max) ulimit -H $_flag $_val
;;
*) ulimit $_flag $_val
return
;;
esac
done
}
# Apply sysctl.conf(5) settings.
sysctl_conf() {
stripcom /etc/sysctl.conf |
while read _line; do
sysctl "$_line"
case $_line in
kern.maxproc=*)
update_limit -p maxproc;;
kern.maxfiles=*)
update_limit -n openfiles;;
esac
done
}
# Apply mixerctl.conf(5) settings.
mixerctl_conf() {
stripcom /etc/mixerctl.conf |
while read _line; do
mixerctl -q "$_line" 2>/dev/null
done
}
# Apply wsconsctl.conf(5) settings.
wsconsctl_conf() {
[[ -x /sbin/wsconsctl ]] || return
stripcom /etc/wsconsctl.conf |
while read _line; do
eval "wsconsctl $_line"
done
}
random_seed() {
# push the old seed into the kernel
dd if=/var/db/host.random of=/dev/random bs=65536 count=1 status=none
chmod 600 /var/db/host.random
# ... and create a future seed
dd if=/dev/random of=/var/db/host.random bs=65536 count=1 status=none
# and create a seed file for the boot-loader
dd if=/dev/random of=/etc/random.seed bs=512 count=1 status=none
chmod 600 /etc/random.seed
}
# Populate net.inet.(tcp|udp).baddynamic with the contents of /etc/services so
# as to avoid randomly allocating source ports that correspond to well-known
# services.
# Usage: fill_baddynamic tcp|udp
fill_baddynamic() {
local _service=$1
local _sysctl="net.inet.${_service}.baddynamic"
stripcom /etc/services |
{
_ban=
while IFS=" /" read _name _port _srv _junk; do
[[ $_srv == $_service ]] || continue
_ban="${_ban:+$_ban,}+$_port"
# Flush before argv gets too long
if ((${#_ban} > 1024)); then
sysctl -q "$_sysctl=$_ban"
_ban=
fi
done
[[ -n $_ban ]] && sysctl -q "$_sysctl=$_ban"
}
}
# Start daemon using the rc.d daemon control scripts.
# Usage: start_daemon daemon1 daemon2 daemon3
start_daemon() {
local _daemon
for _daemon; do
eval "_do=\${${_daemon}_flags}"
[[ $_do != NO ]] && /etc/rc.d/${_daemon} start
done
}
# Generate keys for isakmpd, iked and sshd if they don't exist yet.
make_keys() {
local _isakmpd_key=/etc/isakmpd/private/local.key
local _isakmpd_pub=/etc/isakmpd/local.pub
local _iked_key=/etc/iked/private/local.key
local _iked_pub=/etc/iked/local.pub
if [[ ! -f $_isakmpd_key ]]; then
echo -n "openssl: generating isakmpd/iked RSA keys... "
if openssl genrsa -out $_isakmpd_key 2048 >/dev/null 2>&1 &&
chmod 600 $_isakmpd_key &&
openssl rsa -out $_isakmpd_pub -in $_isakmpd_key \
-pubout >/dev/null 2>&1; then
echo done.
else
echo failed.
fi
fi
if [[ ! -f $_iked_key ]]; then
# Just copy the generated isakmpd key
cp $_isakmpd_key $_iked_key
chmod 600 $_iked_key
cp $_isakmpd_pub $_iked_pub
fi
ssh-keygen -A
}
# Re-link libraries, placing the objects in a random order.
reorder_libs() {
local _l _liba _libas _tmpdir _remount=false _error=false
local _dkdev=$(df /usr/lib | sed '1d;s/ .*//')
local _mp=$(mount | grep "^$_dkdev")
# Skip if /usr/lib is on a nfs mounted filesystem.
[[ $_mp == *' type nfs '* ]] && return
echo -n 'reordering libraries:'
# Only choose the latest version of the libraries.
for _liba in /usr/lib/libc.so.*.a; do
_liba=$(ls ${_liba%%.[0-9]*}*.a | sort -V | tail -1)
for _l in $_libas; do
[[ $_l == $_liba ]] && continue 2
done
_libas="$_libas $_liba"
done
# Remount read-write, if /usr/lib is on a read-only ffs filesystem.
if [[ $_mp == *' type ffs '*'read-only'* ]]; then
if mount -u -w $_dkdev; then
_remount=true
else
echo ' failed.'
return
fi
fi
for _liba in $_libas; do
_tmpdir=$(mktemp -dq /tmp/_librebuild.XXXXXXXXXXXX) && (
set -o errexit
_lib=${_liba#/usr/lib/}
_lib=${_lib%.a}
cd $_tmpdir
ar x ${_liba}
cc -shared -o $_lib $(ls *.so | sort -R) $(cat .ldadd)
[[ -s $_lib ]] && file $_lib | fgrep -q 'shared object'
LD_BIND_NOW=1 LD_LIBRARY_PATH=$_tmpdir awk 'BEGIN {exit 0}'
install -F -S -o root -g bin -m 0444 $_lib /usr/lib/$_lib
) || { _error=true; break; }
done
rm -rf /tmp/_librebuild.*
# Restore previous mount state if it was changed.
if $_remount; then
mount -u -r $_dkdev || _error=true
fi
if $_error; then
echo ' failed.'
else
echo ' done.'
fi
}
# Run rc.* script and email output to root.
# Usage: run_upgrade_script firsttime|sysmerge
run_upgrade_script() {
local _suffix=$1
[[ -n $_suffix ]] || return 1
if [[ -f /etc/rc.$_suffix ]]; then
mv /etc/rc.$_suffix /etc/rc.$_suffix.run
. /etc/rc.$_suffix.run 2>&1 | tee /dev/tty |
mail -Es "$(hostname) rc.$_suffix output" root >/dev/null
fi
rm -f /etc/rc.$_suffix.run
}
# Check filesystems, optionally by using a fsck(8) flag.
# Usage: do_fsck [-flag]
do_fsck() {
fsck -p "$@"
case $? in
0) ;;
2) exit 1
;;
4) echo "Rebooting..."
reboot
echo "Reboot failed; help!"
exit 1
;;
8) echo "Automatic file system check failed; help!"
exit 1
;;
12) echo "Boot interrupted."
exit 1
;;
130) # Interrupt before catcher installed.
exit 1
;;
*) echo "Unknown error; help!"
exit 1
;;
esac
}
# End subroutines.
stty status '^T'
# Set shell to ignore SIGINT (2), but not children; shell catches SIGQUIT (3)
# and returns to single user after fsck.
trap : 2
trap : 3 # Shouldn't be needed.
export HOME=/
export INRC=1
export PATH=/sbin:/bin:/usr/sbin:/usr/bin
# Must set the domainname before rc.conf, so YP startup choices can be made.
if [[ -s /etc/defaultdomain ]]; then
domainname "$(stripcom /etc/defaultdomain)"
fi
# Need to get local functions from rc.subr.
FUNCS_ONLY=1 . /etc/rc.d/rc.subr
# Load rc.conf into scope.
_rc_parse_conf
if [[ $1 == shutdown ]]; then
if echo 2>/dev/null >>/var/db/host.random || \
echo 2>/dev/null >>/etc/random.seed; then
random_seed
else
echo warning: cannot write random seed to disk
fi
# If we are in secure level 0, assume single user mode.
if (($(sysctl -n kern.securelevel) == 0)); then
echo 'single user: not running shutdown scripts'
else
pkg_scripts=${pkg_scripts%%*( )}
if [[ -n $pkg_scripts ]]; then
echo -n 'stopping package daemons:'
while [[ -n $pkg_scripts ]]; do
_d=${pkg_scripts##* }
pkg_scripts=${pkg_scripts%%*( )$_d}
[[ -x /etc/rc.d/$_d ]] && /etc/rc.d/$_d stop
done
echo '.'
fi
[[ -f /etc/rc.shutdown ]] && sh /etc/rc.shutdown
fi
# Bring carp interfaces down gracefully.
ifconfig | while read _if _junk; do
[[ $_if == carp+([0-9]): ]] && ifconfig ${_if%:} down
done
exit 0
fi
# Add swap block-devices.
swapctl -A -t blk
if [[ -e /fastboot ]]; then
echo "Fast boot: skipping disk checks."
elif [[ $1 == autoboot ]]; then
echo "Automatic boot in progress: starting file system checks."
do_fsck
fi
trap "echo 'Boot interrupted.'; exit 1" 3
umount -a >/dev/null 2>&1
mount -a -t nonfs,vnd
mount -uw / # root on nfs requires this, others aren't hurt.
rm -f /fastboot # XXX (root now writeable)
# Set flags on ttys. (Do early, in case they use tty for SLIP in netstart.)
echo 'setting tty flags'
ttyflags -a
# Set keyboard encoding.
if [[ -x /sbin/kbd && -s /etc/kbdtype ]]; then
kbd "$(cat /etc/kbdtype)"
fi
wsconsctl_conf
# Set initial temporary pf rule set.
if [[ $pf != NO ]]; then
RULES="block all"
RULES="$RULES\npass on lo0"
RULES="$RULES\npass in proto tcp from any to any port ssh keep state"
RULES="$RULES\npass out proto { tcp, udp } from any to any port domain keep state"
RULES="$RULES\npass out inet proto icmp all icmp-type echoreq keep state"
RULES="$RULES\npass out inet proto udp from any port bootpc to any port bootps"
RULES="$RULES\npass in inet proto udp from any port bootps to any port bootpc"
if ifconfig lo0 inet6 >/dev/null 2>&1; then
RULES="$RULES\npass out inet6 proto icmp6 all icmp6-type neighbrsol"
RULES="$RULES\npass in inet6 proto icmp6 all icmp6-type neighbradv"
RULES="$RULES\npass out inet6 proto icmp6 all icmp6-type routersol"
RULES="$RULES\npass in inet6 proto icmp6 all icmp6-type routeradv"
RULES="$RULES\npass out inet6 proto udp from any port dhcpv6-client to any port dhcpv6-server"
RULES="$RULES\npass in inet6 proto udp from any port dhcpv6-server to any port dhcpv6-client"
fi
RULES="$RULES\npass in proto carp keep state (no-sync)"
RULES="$RULES\npass out proto carp !received-on any keep state (no-sync)"
if [[ $(sysctl vfs.mounts.nfs 2>/dev/null) == *[1-9]* ]]; then
# Don't kill NFS.
RULES="set reassemble yes no-df\n$RULES"
RULES="$RULES\npass in proto { tcp, udp } from any port { sunrpc, nfsd } to any"
RULES="$RULES\npass out proto { tcp, udp } from any to any port { sunrpc, nfsd } !received-on any"
fi
print -- "$RULES" | pfctl -f -
pfctl -e
fi
# Fill net.inet.(tcp|udp).baddynamic lists from /etc/services.
fill_baddynamic udp
fill_baddynamic tcp
sysctl_conf
echo 'starting network'
# Set carp interlock by increasing the demotion counter.
# Prevents carp from preempting until the system is booted.
ifconfig -g carp carpdemote 128
# Recover resolv.conf in case dhclient died hard.
if [[ -f /etc/resolv.conf.save ]]; then
mv -f /etc/resolv.conf.save /etc/resolv.conf
touch /etc/resolv.conf
fi
sh /etc/netstart
dmesg >/dev/random # Any write triggers a rekey.
# Load pf rules and bring up pfsync interface.
if [[ $pf != NO ]]; then
if [[ -f /etc/pf.conf ]]; then
pfctl -f /etc/pf.conf
fi
if [[ -f /etc/hostname.pfsync0 ]]; then
sh /etc/netstart pfsync0
fi
fi
mount -s /usr >/dev/null 2>&1
mount -s /var >/dev/null 2>&1
random_seed
reorder_libs
# Clean up left-over files.
rm -f /etc/nologin /var/spool/lock/LCK.*
(cd /var/run && { rm -rf -- *; install -c -m 664 -g utmp /dev/null utmp; })
(cd /var/authpf && rm -rf -- *)
dmesg >/var/run/dmesg.boot # Save a copy of the boot messages.
make_keys
echo -n 'starting early daemons:'
start_daemon syslogd ldattach pflogd nsd rebound unbound ntpd
start_daemon iscsid isakmpd iked sasyncd ldapd npppd
echo '.'
# Load IPsec rules.
if [[ $ipsec != NO && -f /etc/ipsec.conf ]]; then
ipsecctl -f /etc/ipsec.conf
fi
echo -n 'starting RPC daemons:'
start_daemon portmap ypldap
rm -f /var/run/ypbind.lock
if [[ -n $(domainname) ]]; then
start_daemon ypserv ypbind
fi
start_daemon mountd nfsd lockd statd amd
echo '.'
# Check and mount remaining file systems and enable additional swap.
mount -a
swapctl -A -t noblk
do_fsck -N
mount -a -N
# /var/crash should be a directory or a symbolic link to the crash directory
# if core dumps are to be saved.
if [[ -d /var/crash ]]; then
savecore $savecore_flags /var/crash
fi
# Store ACPI tables in /var/db/acpi to be used by sendbug(1).
if [[ -x /usr/sbin/acpidump ]]; then
acpidump -o /var/db/acpi/
fi
if [[ $check_quotas == YES ]]; then
echo -n 'checking quotas:'
quotacheck -a
echo ' done.'
quotaon -a
fi
# Build kvm(3) and /dev databases.
kvm_mkdb
dev_mkdb
# Set proper permission for the tty device files.
chmod 666 /dev/tty[pqrstuvwxyzPQRST]*
chown root:wheel /dev/tty[pqrstuvwxyzPQRST]*
# Check the password temp/lock file.
if [[ -f /etc/ptmp ]]; then
logger -s -p auth.err \
'password file may be incorrect -- /etc/ptmp exists'
fi
echo clearing /tmp
# Prune quickly with one rm, then use find to clean up /tmp/[lqv]*
# (not needed with mfs /tmp, but doesn't hurt there...).
(cd /tmp && rm -rf [a-km-pr-uw-zA-Z]*)
(cd /tmp &&
find . -maxdepth 1 ! -name . ! -name lost+found ! -name quota.user \
! -name quota.group ! -name vi.recover -execdir rm -rf -- {} \;)
# Create Unix sockets directories for X if needed and make sure they have
# correct permissions.
[[ -d /usr/X11R6/lib ]] && mkdir -m 1777 /tmp/.{X11,ICE}-unix
[[ -f /etc/rc.securelevel ]] && sh /etc/rc.securelevel
# rc.securelevel did not specifically set -1 or 2, so select the default: 1.
(($(sysctl -n kern.securelevel) == 0)) && sysctl kern.securelevel=1
# Patch /etc/motd.
if [[ ! -f /etc/motd ]]; then
install -c -o root -g wheel -m 664 /dev/null /etc/motd
fi
if T=$(mktemp /tmp/_motd.XXXXXXXXXX); then
sysctl -n kern.version | sed 1q >$T
echo "" >>$T
sed '1,/^$/d' </etc/motd >>$T
cmp -s $T /etc/motd || cp $T /etc/motd
rm -f $T
fi
if [[ $accounting == YES ]]; then
[[ ! -f /var/account/acct ]] && touch /var/account/acct
echo 'turning on accounting'
accton /var/account/acct
fi
if [[ -x /sbin/ldconfig ]]; then
echo 'creating runtime link editor directory cache.'
[[ -d /usr/local/lib ]] && shlib_dirs="/usr/local/lib $shlib_dirs"
[[ -d /usr/X11R6/lib ]] && shlib_dirs="/usr/X11R6/lib $shlib_dirs"
ldconfig $shlib_dirs
fi
echo 'preserving editor files.'; /usr/libexec/vi.recover
# If rc.sysmerge exists, run it just once, and make sure it is deleted.
run_upgrade_script sysmerge
echo -n 'starting network daemons:'
start_daemon ldomd sshd switchd snmpd ldpd ripd ospfd ospf6d bgpd ifstated
start_daemon relayd dhcpd dhcrelay mrouted dvmrpd radiusd eigrpd
if ifconfig lo0 inet6 >/dev/null 2>&1; then
if (($(sysctl -n net.inet6.ip6.forwarding) == 1)); then
start_daemon route6d rtadvd
fi
fi
start_daemon hostapd lpd smtpd slowcgi httpd ftpd
start_daemon ftpproxy ftpproxy6 tftpd tftpproxy identd inetd rarpd bootparamd
start_daemon rbootd mopd vmd spamd spamlogd sndiod
echo '.'
# If rc.firsttime exists, run it just once, and make sure it is deleted.
run_upgrade_script firsttime
# Run rc.d(8) scripts from packages.
if [[ -n $pkg_scripts ]]; then
echo -n 'starting package daemons:'
for _daemon in $pkg_scripts; do
if [[ -x /etc/rc.d/$_daemon ]]; then
start_daemon $_daemon
else
echo -n " ${_daemon}(absent)"
fi
done
echo '.'
fi
[[ -f /etc/rc.local ]] && sh /etc/rc.local
ifconfig -g carp -carpdemote 128 # Disable carp interlock.
mixerctl_conf
echo -n 'starting local daemons:'
start_daemon apmd sensorsd hotplugd watchdogd cron wsmoused xdm
echo '.'
date
exit 0